This study examines how listener judgments of second language speech relate to individual differences in listeners' phonological memory, attention control, and musical ability. Sixty native English listeners (30 music majors, 30 nonmusic majors) rated 40 nonnative speech samples for accentedness, comprehensibility, and fluency. The listeners were also assessed for phonological memory (serial recognition), attention control (trail making), and musical aptitude. Results showed that music majors assigned significantly lower scores than nonmusic majors solely for accentedness, particularly for low ability second language speakers. However, the ratings were not significantly affected by individual differences in listeners' phonological memory and attention control, which implies that these factors do not bias listeners' subjective judgments of speech. Implications for psycholinguistic research and for high-stakes speaking assessments are discussed.As universities and other postsecondary institutions seek to attract an increasingly diverse student body, they face the responsibility of providing valid assessments of incoming students' language ability, especially when the students' mother tongue is not the language of instruction (Cheng, Myles, & Curtis, 2004). There have been attempts to develop technology-based, automated assessment instruments for spoken English (Downey, Farhady, Present-Thomas, Suzuki, & Van Moere, 2008). However, the most commonly used second language (L2) speaking tests in academic settings, whether they rely on recorded speaking prompts (e.g., Test